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#! /bin/bash
Dir=$1
List=$2
Dest="extra"
# Destination was specified on the command line
test -n "$3" && Dest="$3"
pushd $Dir
rm -rf modnames
find . -name "*.ko" -type f > modnames
# Look through all of the modules, and throw any that have a dependency in
# our list into the list as well.
rm -rf dep.list dep2.list
rm -rf req.list req2.list
touch dep.list req.list
cp "$List" .
# This variable needs to be exported because it is used in sub-script
# executed by xargs
export ListName=$(basename "$List")
# NB: this loop runs 2000+ iterations. Try to be fast.
NPROC=`nproc`
[ -z "$NPROC" ] && NPROC=1
cat modnames | xargs -r -n1 -P $NPROC sh -c '
dep=$1
depends=`modinfo $dep | sed -n -e "/^depends/ s/^depends:[ \t]*//p"`
[ -z "$depends" ] && exit
for mod in ${depends//,/ }
do
match=$(grep "^$mod.ko" "$ListName")
[ -z "$match" ] && continue
# check if the module we are looking at is in mod-extra too.
# if so we do not need to mark the dep as required.
mod2=${dep##*/} # same as `basename $dep`, but faster
match2=$(grep "^$mod2" "$ListName")
if [ -n "$match2" ]
then
#echo $mod2 >> notreq.list
continue
fi
echo $mod.ko >> req.list
done
' DUMMYARG0 # xargs appends MODNAME, which becomes $dep in the script above
sort -u req.list > req2.list
sort -u "$ListName" > modules2.list
join -v 1 modules2.list req2.list > modules3.list
for mod in $(cat modules3.list)
do
# get the path for the module
modpath=`grep /$mod modnames`
[ -z "$modpath" ] && continue
echo $modpath >> dep.list
done
sort -u dep.list > dep2.list
# now move the modules into the extra/ directory
for mod in `cat dep2.list`
do
newpath=`dirname $mod | sed -e "s/kernel\\//$Dest\//"`
mkdir -p $newpath
mv $mod $newpath
done
popd
# If we're signing modules, we can't leave the .mod files for the .ko files
# we've moved in .tmp_versions/. Remove them so the Kbuild 'modules_sign'
# target doesn't try to sign a non-existent file. This is kinda ugly, but
# so is modules-extra.
for mod in `cat ${Dir}/dep2.list`
do
modfile=`basename $mod | sed -e 's/.ko/.mod/'`
rm .tmp_versions/$modfile
done
pushd $Dir
rm modnames dep.list dep2.list req.list req2.list
rm "$ListName" modules2.list modules3.list
popd
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